256 



Pork Production 



moisture basis reduces, also, the chances of contamination 

 later. The uncooked by-products from slaughterhouses 

 are to be regarded, on the other hand, as highly dangerous. 



Corn alone versus corn and tankage. 



Probably no protein feed on the market has been as 

 extensively studied as has tankage. In Table C are 

 summarized the results of fifteen individual feeding experi- 

 ments conducted at six different experiment stations. 

 Each experiment reported was a test of a combination 

 of corn and tankage against corn alone when fed in the 

 dry lot to pigs averaging approximately 138 pounds 

 when the experiments began. In practically all the tests, 

 so-called number one tankage, containing from 55 to 60 

 per cent of protein, was used. 



TABLE C. SUMMARY : CORN ALONE VERSUS CORN AND 

 TANKAGE OR MEAT-MEAL 1 (Av. 15 Exps.) 



The deficiency of a ration of corn alone was emphati- 

 cally shown by the result of every one of these practical 

 feeding tests. The results in both rate and cost of 

 gain show up in strong contrast when compared with the 

 balanced combination of corn and tankage. 



1 Ind Exp. Sta. Bull. 137 ; Iowa Exp. Sta. Bull. 91 ; Neb. Exp. 

 Sta. BuU. 147 ; Mo. Exp. Sta. Bull. 65 ; Kans. Exp. Sta. Bull. 

 192 ; Ohio Exp. Sta. BuU. 209. 



